11. Connection to other devices11.3 Setting up a NETNET station heartbeatIn order to make it possible for all NET stations within a group to be able to knowwhether NET stations important to them are still communicating, each station cyclicallysends a heartbeat every second (1 s).If a heartbeat is not received, the corresponding error bit ID01 – 08 will be set to "1" untila heartbeat is detected.11.3.3 NET settingsPrerequisitesThe Ethernet settings must have already been configured.In offline mode, setting up the configuration in easySoft 7 under the Ethernet tab isenough, → Section "Establishing an Ethernet connection", page 532A NET ID needs to be assigned to every easyE4 base device and to every station addedto the project as an other NET station.Project viewFigure 254: NET-ID dialog box used to assign a NET ID when adding a new base deviceAfter you add a new station to the project, you will need todownload all easyE4 programs for the NET group again.Loading programs onto multiple NET stationsTo conveniently load programs for multiple stations on the NET with a single operation,follow the steps below:Prerequisitesl All the devices must be in the group physically.l Every single device must have an assigned NET ID.If the project that is open features multiple NET stations, establish online com-munications with the NET-ID1 NET station.Make sure that is selected instead of the usual in the Com-munication view/Connection section/Device drop-down menu.Click on the PC -> Device button.The Selection of NET stations dialog box will appear.easyE4 11/18 MN050009 EN www.eaton.com 541
